failed nfs installworld

[boxend at swbell.net]

I have a full file system on a older box with a small drive.
This box has 8mb ram/ 200mb hd.  So 
it's hard for me to give up and reinstall Freebsd.
I was doing a installworld from a nfs box, made some
bad choices in make.conf. Can you say nooooobie?  =)

I have not found much on recovering from this type error.

The box was 4.8 freebsd
boxrt# df -h
Filesystem      Size   Used  Avail Capacity  Mounted on
/dev/ad0s1a      48M    36M   8.5M    81%    /
/dev/ad0s1f     109M    98M   1.7M    98%    /usr
/dev/ad0s1e      19M   336K    17M     2%    /var
procfs          4.0K   4.0K     0B   100%    /proc
boxa:/usr/obj   1.8G   1.3G   337M    80%    /usr/obj
boxa:/usr/src   1.8G   1.3G   337M    80%    /usr/src